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Archived New Product Announcements


GL's VoIP Call Generation & Analysis Wins Customer Interaction Solutions Product Of The Year Award 2004


GL's Complete VQT Solutions wins Internet Telephony's Product of the Year Award 2004


GL's Automated Wireless VQT wins Internet Telephony's Product of the Year Award 2003


GL's Echo Canceller Testing Software wins Internet Telephony's Product of the Year Award

TMC Labs Review of DCOSS: Internet Telephony March 2002 Issue

Recent Magazine Article on DCOSS

Contact Details


Archived New Product Announcements

  • STM-1 Mux and Traffic Capture / Analysis Hardware

    STM-1 Mux is a cost-effective, compact (only 1U high), SDH (Synchronous Digital Hierarchy) multiplexer that is designed for applications in metro and access networks for efficient transport of traditional TDM and emerging data traffic.

    Please visit the STM-1 Mux and Traffic Capture / Analysis Hardware page for more information.

  • MAPS™ SIP I (Scripted SIP-I and SIP-T Emulation)

    MAPS™ SIP I is an advanced protocol simulator/tester for SIP-ISUP simulation over IP that can simulate SIP ISUP signaling specification as defined by the ITU and IETF standards. This test tool is designed for SIP-I Testing can simulate Signaling Gateway / Softswitch as a User Agents Client (UAC), which sends SIP requests with ISUP message and User Agent Server (UAS), which receives the requests as Signaling Gateway / Softswitch and returns a SIP response with proper ISUP message attached.

    Please visit the MAPS™ SIP I (Scripted SIP-I and SIP-T Emulation) page for more information.

  • MAPS™ ISDN over IP (ISDN SIGTRAN) Emulator

    MAPS™ ISDN-SIGTRAN is an advanced protocol simulator/tester used for ISDN simulation over IP. The tester can simulate a complete ISDN connection between SG (Signaling Gateway) to MGC (Media Gateway Controller), where ISDN signaling are as defined by the ITU-T Q.921 / Q.931 standards. The application is built with ready-to-use scripts, which generates and processes all ISDN messages including Setup, Connect, Release messages, and others.

    Please visit the MAPS™ ISDN over IP (ISDN SIGTRAN) Emulator page for more information.

  • MAPS™ UMTS for IuCS and IuH Interfaces

    MAPS™ designed for testing UMTS IuCS can simulate RNC (Radio Network Controller), and 3G MSC (3G Mobile Switching Centre) by generating RANAP messages and signaling specification as defined by 3GPP standards over IP (as Transport layer).

    MAPS™ designed for testing UMTS IuH can simulate Femto Home Node B (HNB), and a Femto Home Node Gateway (HNB-GW). A femtocell is a small cellular base station designed for use in residential or small business environments. IuH links Femto Access Point (HNB) and a Femto Gateway (HNB-GW).

    Please visit the MAPS™ UMTS for IuCS and IuH Interfaces page for more information.

  • MAPS™ UMTS for IuPS Interface

    MAPS™ UMTS IuPS Interface Emulator is an advanced protocol simulator/tester for UMTS IuPS interface that can simulate RANAP messages and signaling specification as defined by 3GPP standards over IP (as Transport layer). Simulates RNC and SGSN in UMTS IuPS interface generating and processing RANAP, GPRS Mobility Management, and Session Management messages and procedures.

    Please visit the MAPS™ UMTS for IuPS Interface page for more information.

  • MAPS™ LTE S1 Interface

    GLís MAPS™ LTE S1 is designed to simulate network elements such as eNodeB (Evolved Node B), and MME (Mobility Management Entity).The application gives the users the unlimited ability to edit S1-AP/NAS messages and control scenarios (message sequences).

    Please visit the MAPS™ LTE S1 Interface page for more information.

  • MAPS™ LTE eGTP (S3, S4, S5, S8, S10, S11 and S16 Interfaces)

    MAPS™ eGTP can act either as MME (Mobility Management Entity) or as SGW (Serving Gateway) in S11 interface and SGW (Serving Gateway) or as PGW (PDN Gateway) in S5/S8 interface. The application gives the users the unlimited ability to edit eGTP-C (Evolved GPRS Tunneling Protocol for Control Plane (eGTP-c) messages and control scenarios (message sequences).

    Please visit the MAPS™ LTE eGTP (S3, S4, S5, S8, S10, S11 and S16 Interfaces) page for more information.

  • Echo Measurement Utility (EMU)

    GLís Echo Measurement Utility (EMU) software is an offline analysis application that compares source and received files to determine echoes (maximum of four echoes), and performs detailed analysis depending on the echo type Ė Line (Hybrid), or Acoustic.

    Please visit the Echo Measurement Utility (EMU) page for more information.

  • tProbe™ T1 E1 VF and Serial Data Analysis and Emulation Hardware

    GL's new tProbe™ is an enhanced version of our popular USB based T1 E1 VF Analyzer / Emulator. This hardware incorporates all the features of the previous analyzer such as portability, USB interface, remote accessibility, scripting, and a vast collection of optional applications.

    Please visit the tProbe™ T1 E1 VF and Serial Data Analysis and Emulation Hardware page for more information.

  • PacketExpert™ - Quad Port Ethernet/IP Tester

    GL's PacketExpert™ is a Portable Quad Port Ethernet Tester (USB based) with 4 electrical 10/100/1000 Ethernet ports and 2 Optical Ports. The portable Ethernet/IP tester connects to Notebook PC through a USB 2.0 interface.

    Please visit the PacketExpert™ - Quad Port Ethernet/IP Tester page for more information.

  • MAPS Ė SIGTRAN (SS7 over IP)

    GL's MAPS-SIGTRAN™ is an advanced protocol simulator/tester for SS7 simulation over IP Networks. It can simulate a Signaling Gateway and Softswitch ISUP signaling specification as defined by ITU-T standards.

    Please visit the MAPS Ė SIGTRAN (SS7 over IP) page for more information.

  • LTE (Long Term Evolution) Protocol Analyzer

    GL's LTE analyzer is capable of capturing, decoding and performing various test measurements across various interfaces i.e. S1, S3, S4, S5 (or S8), S6a, S10, S11, S13 and X2 interfaces of the LTE network.

    GL Communications supports both Real-time and Offline types of LTE Analyzer. Required pre-requisites are - Hardware Dongles and Windowsģ 2000/XP/Vista Operating System.

    Please visit the LTE (Long Term Evolution) Protocol Analyzer page for more information.

  • TDM Protocol Identifier

    The Protocol Identifier application can identify various protocols carried on T1 or E1 lines. It is capable of detecting protocols such as ISDN, ATM, HDLC, MTP2, LAPD, SS7, PPP, GSM, GSM Abis, TRAU and Frame Relay. The timeslots and the subchannels within timeslots are also identified. Once identified, detailed analysis can be carried out by individual Protocol Analyzers. This application is helpful in identifying traffic types at a concentrated point, DSX patch panel, or multiplexed facility.

    Please visit the TDM Protocol Identifier page for more information.

  • Call Data Records

    CDR provides comprehensive information on each and every call occurring on T1 E1 lines, including: voice capture for both directions, complete signaling information for each direction for CAS, ISDN, MFC-R2, SS7, all alarms and errors occurring during the call including BPV, Frame Errors, CRC errors, Loss Of Sync, and more

    Please visit the Call Data Records page for more information.

  • PacketProbe™ - An Embedded VoIP Monitoring Solution

    GL's PacketProbe™ is an advanced embedded VoIP monitoring software. The PacketProbe™ passively monitors VoIP traffic carried over LAN or WAN by producing real-time per call and per-stream voice quality metrics. Call Detailed Records (CDR) along with voice quality including Mean Opinion Score (MOS) and other vital diagnostic information provide network managers immediate visibility into service quality, call volume, and call details. Service providers should be able to rapidly drill down and diagnose voice quality problems. PacketProbe™ software can be used as an embedded application or as standalone probe appliance. Multiple PacketProbes™ can provide network wide voice quality visibility through GLís PacketScanWeb™ or other NMS systems.

    Please visit the PacketProbe™ - An Embedded VoIP Monitoring Solution page for more information.

  • LightSpeed1000™ - OC3/12 and STM1/4 Analysis and Emulation Card (w/ GigE and USB 2.0)

    The LightSpeed1000™ is our new dual OC3 / 12 STM1 /4 PCI-Express card for protocol analysis and emulation of ATM, POS, RAW, and Ethernet traffic. The card also sports 2 GigaBytes of DDR2 RAM, a GigE, and a USB 2.0 interface making this card one of the most versatile and powerful cards in GLís repertoire.

    Please visit the LightSpeed1000™ - OC3/12 and STM1/4 Analysis and Emulation Card (w/ GigE and USB 2.0) page for more information.

  • Dual Universal Telephony Adapter (UTA)

    The Dual Universal Telephony Adapter (Dual UTA) is a comprehensive hardware device designed to interface and test the voice quality of telecommunication networks. The Dual UTA features all the circuitry necessary to universally adapt to any telephony instrumentation, such as standard Plain Old Telephone Systems (POTS), digital hybrid interfaces, Voice over Internet Protocol (VoIP) networks, wireless cellular phones and mobile radios including devices that utilize Bluetooth® technology.

    Please visit the Dual Universal Telephony Adapter (UTA) page for more information.

  • PacketCheck™ - Software Ethernet Tester

    GL's PacketCheck™ is a PC based Ethernet test tool that is designed to check frame transport ability, and throughput parameters of Ethernet and IP networks.

    It can be used as a general purpose Ethernet performance analysis for 10Mbps, 100Mbps and 1Gbps Ethernet local area networks. The PacketCheck™ makes use of the network interface card (NIC) in the PC to transmit and receive Ethernet packets over the network. Throughput up to 800 Mbps can be easily tested.

    Please visit the PacketCheck™ - Software Ethernet Tester page for more information.

  • PCI Based Universal T1/E1 Cards

    GLís new Universal T1/E1 card is capable of both T1 and E1 interfacing. In addition with the other basic T1/E1 line signals monitoring applications, the Universal T1/E1 cards also support Pulse Mask Compliance Testing, and Monitor Jitter Measurement applications. Cross-port and Through mode hardware loop-backs are also provided on the Universal T1/E1 cards.

    Please visit the PCI Based Universal T1/E1 Cards page for more information.

  • LinkTest™ SINGLE

    GLís LinkTest™ SINGLE is a sophisticated bit error rate tester in a compact, hand held package. The unit can test a wide variety of communications facilities and equipment including Asynchronous, Synchronous, T1, fractional T1, E1, fractional E1, modems, multiplexers, CSU/DSUs, T1 ESF CSUs, DU, NTUs and TIUs.

    Please visit the LinkTest™ SINGLE page for more information.

  • LinkTest™ SINGLE+

    GLís LinkTest™ SINGLE+ is a sophisticated bit error rate tester in a compact, hand held package. The unit can test a wide variety of communications facilities and equipment including DDS, T1, fractional T1, E1, fractional E1, T3 and E3, NTUs, multiplexers, CSU/DSUs, T1 CSUs, DTUs and TIUs.

    Please visit the LinkTest™ SINGLE+ page for more information.

  • LinkTest™ DUAL

    GLís LinkTest™ DUAL is a sophisticated bit error rate tester in a compact, hand held package with dual interfaces and a full color display. The unit can test a wide variety of communications facilities and equipment including T1, fractional T1, E1, fractional E1, T3 and E3 modems, multiplexers, CSU/DSUs, T1 CSUs, DTUs, NTUs and TIUs.

    Please visit the LinkTest™ DUAL page for more information.

  • LinkSim™

    GLís LinkSim™ simulates a variety of communications links, inserting delays and inserting errors such that the user can determine what effects these impairments will have on their systems.

    Please visit the LinkSim™ page for more information.

  • Laptop T3 E3 T1 E1 Ethernet Analyzer

    GLís T3/E3 analyzer unit used in conjunction with GLís Laptop T1/E1 analyzer provides a complete T3/E3 (44.736/34.368 Mbps), T1/E1 (1.544 Mbps / 2.048Mbps), and DS0 (64Kbps) testing solution.

    Please visit the Laptop T3 E3 T1 E1 Ethernet Analyzer page for more information.

  • 2-Wire Voice/Data Capture

    The GL Voice Recorder is used to manually capture the voice/data over a 2-wire Analog interface. Using the 2-wire Phone Tap adaptor, one can non-intrusively Ďtapí into the analog 2-wire line via the RJ11 interface and capture the bi-directional voice/data. The recorded voice/data is automatically saved into a single PCM file.

    Please visit the 2-Wire Voice/Data Capture page for more information.

  • 2-Wire Phone Tap

    The 2-Wire Phone Tap connects non-intrusively to any analog telephone line and to the USB Interface of a PC for recording incoming calls and outgoing calls. Voice in both directions, Caller ID, and DTMF digits are all recorded, detected, and decoded. The 2-Wire Phone Tap can also connect to any IP, digital, analog, or chordless telephone at the handset curly cord point.
    Please visit the 2-Wire Phone Tap page for more information.

  • Audio Processing Utility Software

    Audio processing utility is a pre-processing application used for manipulating the input audio (tones, and voice) files with impairments such as delay, noise, acoustic echo, line echo, and double talk. An echo file is generated if a corresponding line or acoustic echo filter is specified. It analyzes the given coefficients files and calculates the applied delay & ERL. The degraded audio output file can then be visually analyzed or used for further speech analysis with GLís Voice Quality Testing, Digital Echo Canceller & other applications.
    Please visit the Audio Processing Utility page for more information.

  • Near Real-time Voice-band Analyzer Software

    The Near Real-time Voice-band Analyzer (VBA) is an analysis tool for monitoring voice band network traffic. The VBA can host different analysis modules for monitoring speech and noise levels, and line echo. The standard modules included in the application are ITU-T P.56 Active Voice Level analysis, Line Echo (Hybrid) analysis, and Acoustic Echo analysis. Other analysis modules such as ITU-T P.561, P.562, and P.563 can be hosted as plug-ins.
    Please visit the Voice-band Analyzer page for more information.

  • IPNetSim™ - IP Network Simulator

    IPNetSim™ can simulate an entire IP network in a single box. All the conditions encountered in a real-time IP network are simulated such as network latency, network delay variation (jitter), bandwidth, congestion, packet errors, bit errors and other link impairments independently in both directions at speeds of up to 100 Mbps (or1Gbps per link). It can be used to test IP end point devices such as (Gateways, IADs, IP phones, Soft phones, and so on) for voice, fax, data, or multimedia transmission over IP.
    Please visit the IPNetSim™ page for more information.

  • MC-MLPPP Emulator - For Automated Testing of PPP, MLPPP, & MC-MLPP using Client Server

    Automated testing can be accomplished using client-server based PPP, MLPPP, & Multi-Channel (MC) MLPPP Emulation and Analysis (MLPPPTerr) module. The application permits traffic generation and verification over PPP links and may be accessed through a GUI or through command line scripts.
    Please visit the MLPPP and PPP Emulator page for more information.

  • VQuad™

    GL's VQuad™ makes assessing Voice Quality between and within differing networks easy, portable, and convenient. The system provides all necessary capability for automatic measurement of Voice Quality and QOS for any desired network including VoIP, TDM, Wireless, or Analog. The VQuad™ VQT System provides interfaces for wireless/WiFi phones, VoIP/Digital phones, PSTN (2-wire) phones, VoIP (SIP/H.323) and T1/E1 (ISDN and CAS). Up to 8 devices can be controlled simultaneously on a single portable system.
    Please visit the VQuad™ page for more information.

  • MobNetMon™ (This product is discontinued. Please refer to Complete VQT Solutions)

    MobNetMon™ can monitor "off-air" GSM network signals as one drives through a GSM service area. Any of the world's GSM bands can be monitored with the included "quad-band" wireless phone and accompanying software. MobNetMon™ can determine weak points in a wireless network by generating calls, identifing primary and surrounding GSM base stations, decoding GSM protocol messages, including call traces and protocol analysis.
    Please visit the MobNetMon™ page for more information.

  • CAS Simulator

    GL's CAS simulator is a client-side application that works along with the GL's T1/E1 Analyzer. This optional application simulates any user defined CAS protocol as well as providing analysis of the CAS Protocol by providing signaling bit transitions and forward/backward frequency tones/digits.
    Please visit the CAS Simulator page for more information.

  • Message Automation & Protocol Simulation (MAPS™)

    Message Automation & Protocol Simulation (MAPS™) is a SIP test tool/traffic generator, which is used to s imulate any interface in a SIP network and perform protocol conformance testing (SIP protocol implementations, Megaco). MAPS as a testing tool can simulate User Agents (User Agent Server- UAS, User Agent Client - UAC), Proxy, Registrar, and Redirect Servers. The tool is designed with 300+ test cases, as per specification of ETSI TS 102 027-2 document.
    Please visit the MAPS page for more information.

  • GLInsight™

    GLInsight™ is a state-of-the-art system that provides promptly processed information and analysis of data collected on IP and PSTN networks. Decoded results are analyzed on a per-network basis. Alternatively, data from two networks can be combined to provide additional insight into the networks' behavior.
    Please visit the GLInsight™ page for more information.

  • CDMA 2000 Protocol Analyzer
    GL's CDMA analyzer is used to analyze and view protocols across A, Ater, Aquinter, & Aquater signaling interfaces. CDMA analyzer uses GL's proven T1/E1 internal cards or Laptop T1/E1 external units.
    Please visit the CDMA 2000 Protocol Analyzer page for more information.

  • UMTS Protocol Analyzer
    GL's UMTS analyzer is capable of capturing, decoding and performing various test measurements across various interfaces i.e. Iub, Iur, IuCS and IuPS interfaces of the UMTS network. In addition, it supports ATM as the transport layer. It helps in fault diagnosis and troubleshooting UMTS network.
    Please visit the UMTS Analyzer page for more information.

  • PPP Analyzer
    GL's PPP Analyzer can be used to capture a host of PPP protocols exchanged between the two nodes over T1/E1 link. User can obtain detailed analysis of the protocol and can perform various statistics measurements.
    Please visit the PPP Analyzer page for more information.

  • RTP ToolBox™
    RTP ToolBox™ application is used to create, monitor, and terminate RTP sessions. In addition, the application can be used to generate and analyze traffic in the stream. Users can create sessions by specifying the destination IP address, the source and the destination ports of an RTP media stream.
    Please visit the RTP ToolBox™ page for more information.

  • Voice Enhancement Device Test Per G.160 and G.169
    This application is designed to test the functionality of the voice enhancement devices per G.160 and G.169, including signaling tones tests, noise reduction signal level tests, noise compensation tests, ALC (automatic level control) tests, receive path VIT (voice improvement test) tests, send path EVI (enhanced voice intelligibility) tests.
    Please visit the Voice Enhancement Device Test Per G.160 and G.169 page for more information.

  • Active Voice / Noise Level Monitor
    The Active Voice Level Monitor computes the Active Voice Level of a signal according to the ITU-T P.56 specification, Method B. You can obtain and analyze the source signal in real time from T1/E1 timeslots, or you can process signal data captured to files as an offline process.
    Please visit the Active Voice / Noise Level Monitor page for more information.

  • SIGTRAN Protocol Analyzer
    GL's SIGTRAN protocol decoder software permits real-time analysis, call trace, capture, and filter of SS7 and ISDN signaling messages over IP protocol. This software is available as optional software under GL's PacketScan software. It is also complementary to GL's award winning SS7 and ISDN protocol analyzers. SIGTRAN (RFC 2960, 3332, 3331, 3057) is used to carry Q.931, SS7 ISUP, SCCP, TCAP, etc. messages between IP nodes such as a Signaling Gateway and Media Gateway Controller or Media Gateway. SIGTRAN uses a new connection oriented transport protocol called Stream Control Transport Protocol (SCTP - RFC 2960). SCTP is at the same level but more efficient at transport than TCP, UDP, or RTP.
    Please visit the SIGTRAN Analyzer page for more information.

  • Voice Call Management Utility
    GL's Voice Call Management Utility (CMU), coupled with the GL's T1/E1 Call Capture and Analysis (CCA) application, provides all the necessary features to perform management of large volume of recorded voice calls. The CMU facilitates the job of manipulating recorded voice calls, including sorting of calls and filtering specific types of calls based on called or calling number, time of day, or length of call.
    Please visit the Voice Call Management Utility page for more information.

  • ATM Protocol Analyzer
    GL's ATM Analyzer is used to analyze and view ATM protocols across the U-plane for both NNI and UNI interface. ATM analyzer uses GL's field proven Ultra E1 or T1 internal cards or Dual Laptop E1 or T1 external products.
    Please visit the ATM Analyzer page for more information.

  • GPRS Protocol Analyzer
    General Packet Radio Service (GPRS) permits continuous data connectivity over wireless GSM networks.The GPRS Analyzer performs real time (and offline) analysis across the Gb (T1/E1) and Gn (Ethernet) interface.
    Please visit the GPRS Protocol Analyzer page for more information.

  • PacketGen™ & PacketScan™
    Voice transmission over packet networks continue to present challenging quality of service issues - including echo, delay, voice clipping, and impairments due to lost or jittered packets. These problems are exacerbated even further during high loads or high degree of voice compression. Adequate tools for creating stress conditions and simultaneously characterizing and measuring impairments are not readily available. GL's PacketGen™ and PacketScan™ products fill this void with a complimentary set of tools for stress testing, monitoring, and analysis VoIP network elements. Please visit the PacketGen™ & PacketScan™ page for more information.

  • TRAU Analyzer
    The TRAU Analyzer is part of GL's optional GSM Analyzer and is used to view and analyze TRAU frames at the Abis interface (between the BTS and the BSC). The Transcoder/Rate adaptor unit (TRAU) may be positioned at the MSC site of the BSS or at the BSC site of the BSS.
    Please visit the TRAU Analyzer page for more information.

  • Real Time Strip Chart Application
    The Real-Time Strip Chart application is an optional software for analysis of CAS signaling, with GL Communications' field proven Ultra E1 or T1 internal cards or Laptop E1 or T1 external products. Strip-Chart application enables non- intrusive capturing of PCM data and signaling, and subsequent plotting of the same onto a strip chart format. The application is perfect for CAS protocols, DTMF or MF Signaling, or other voice and signaling timing relationships.
    Please visit the Real Time Strip Chart Application page for more information.

  • PRI ISDN Emulator
    GL's ISDN Emulator offers a complete solution for testing, troubleshooting, installation and maintenance of devices and networks implementing PRI ISDN. It is useful to test ISDN products designed for either U or S/T interface, including network terminations, Type 1 terminating equipment, and terminal adapters. ISDN equipment includes telephones, switchboards, PBXs, PC cards, Video Conferencing Equipment, Interconnect Systems, switches and routers.
    Please visit the PRI ISDN Emulator page for more information.

  • Realtime Multi-Channel Audio Driver
    The GL Real-Time Multi-Channel Audio Driver option allows almost any software, which normally sends/receives sound to a sound card, to redirect the audio streams to/ from timeslots on a T1 or E1 line. The Real-Time Multi-Channel Audio Driver is an optional piece of software for GL's T1 and E1 Analysis cards, and works with almost any sound software such as Cool Edit 2000, Cool Edit Pro, Windows Media Player, etc. This Audio Driver may be installed on Windows 2000 and Windows XP systems.
    Please visit the Realtime Multi-Channel Audio Driver page for more information.

  • Automated Wireless VQT
    GL Introduces VQuad™ software combined with GL's Voice Quality Testing (VQT) software that permits assessment of mobile end-to-end voice quality. It is a hassle-free compact and portable product solution with a host of other features.
    Please visit the Automated Wireless VQT page for more information.

  • Ultra OC-3 / STM-1 Analyzer
    The Ultra OC-3 / STM-1 card (PCI) plugs into a PC expansion slot for analyzing, testing, simulating, and monitoring OC-3 and STS-1 signals. The board can add and drop T1, E1, T3, or STS-1 signals to and from an OC-3 signal, and can also add and drop T1 and E1 signals to and from an STS-1. The Ultra OC-3 / STM-1 card may be used in conjunction with GL's Ultra T1 Card, Ultra E1 Card and Ultra T3 Card in the same PC to provide a complete OC-3, DS3, DS1, E1 and DS0 testing solution. Accompanying Windows-98/NT/2000/XP software affords easy operation.
    Please visit the Ultra OC-3 / STM-1 Analyzer page for more information.

  • Multi Channel BERT Application
    Multi-channel Bit Error Rate Testing (MCBERT) measures correctness of data received on T1/E1 lines/timeslots with stored data in a reference file. The application can work in real-time with data currently being received on T1/E1 lines/timeslots, or off-line with data stored in a file. The on-line T1/E1 testing can be done on full or fractional T1/E1 timeslots.
    Please visit the Multi Channel BERT Application page for more information.

  • GSM Protocol Analyzer
    The GSM Analyzer is used to view and analyze GSM protocols using GL's PCI Ultra E1 and Ultra T1 Cards (internal-to-PC) or GL's Dual Laptop E1 or Dual Laptop T1 (portable external to PC) products. The GSM Analyzer can monitor the A-interface and A-bis interface in GSM networks. Generally, GL's E1/T1 Card or Portable product will be connected between the nodes of GSM elements to monitor the control signals between them.
    Please visit the GSM Protocol Analyzer page for more information.

  • V 5.x Protocol Analyzer
    The V5.x Analyzer is used to view and analyze the signals using GL's PCI Ultra E1 Card (internal-to-PC) or GL's Dual Laptop E1 (portable external to PC) products. The V5.x Analyzer is made for V5.x , a switching and signaling telecommunication protocol between Access Network (AN) and Local Exchange (LE) and operates only on E1 circuits. GL's E1 Card or Portable Product will be connected between LE and AN to monitor the control signals between them.
    Please visit the V 5.x Protocol Analyzer page for more information.

  • HDLC Link Impairment Utility
    The HDLC Link Impairment Utility (HLIU) offers various options to 'impair' (inject errors) specific HDLC frames of a real time HDLC frame stream. The main use of this application is to verify the proper working of HDLC protocols by simulating various scenarios taking place in a real-time network.
    Please visit the HDLC Link Impairment Utility page for more information.

  • Measuring Delay and Loss Over Circuit and Packet (VoIP) Networks using Delay/ERL Application
    Circuit and packet (VoIP) networks introduce impairments such as delay and loss to speech traffic. Quantifying these impairments is an important first step to providing quality voice communications.The delay/ERL application will measure delays and losses through circuit and packet networks using standard test equipment from one manufacturer.
    Please visit the Measuring Delay and Loss Over Circuit and Packet (VoIP) Networks page for more information.


Contact Details

For more information on GL Communications contact:
GL Communications Inc.
818 West Diamond Avenue - Third Floor
Gaithersburg, MD 20878
Phone: 301-670-4784
Fax : 301-670-9187
Email: info@gl.com
 
 
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